Electric power tool with a rotatable brush plate
AssigneeRobert Bosch GmbH
InventorsAxel Kuhnle, Willy Braun
Life of this patent
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Abstract
The invention is based on an electrical power tool with an electrical machine, having a motor housing that receives the electrical machine and having a rotatable brush plate for reversing a direction of rotation of the electrical machine. The brush plate is covered in its cross section by a pivotable cover.
Claims20
An electrical power tool with an electrical machine, comprising a motor housing receiving the electrical machine, a rotatable brush plate movable between two terminal positions for reversing a rotary direction of the electrical machine, and a pivotable cover covering brush plate in its cross section.
A brush cover module for an electrical power tool with an electrical machine, the module comprising a rotatable brush plate and a cover combined in preassembled fashion with a first rotary actuation element for rotating a brush plate and a second actuation element for actuating the first rotary actuation element.
A brush cover module for an electrical power tool with an electrical machine, the module comprising a rotatable brush plate combined in preassembled fashion with one or more holders for receiving carbon brushes, spring elements providing contact pressure acting upon the carbon brushes, and contact elements for electrically contacting contact elements, external to the module, of an electrical machine.
A motor housing module for an electrical power tool with an electrical machine, having a rotatable brush plate, the improvement wherein the motor housing is combined in preassembled fashion with at least one contact element for electrically contacting a contact element external to the module, at least one pole piece, and at least one plug-in element for contacting electrical connections.
Dependencies are inferred from the claim text.